Ethan looks for answers about Cal's last moments as he plans his last goodbye.

The day of Dr. Caleb Knight's funeral arrives, and when details emerge of how his brother spent his final moments, a troubled Ethan turns to drink.

Meanwhile, a school trip to France comes to an abrupt end when a scuffle on board the coach causes it to crash.

As a result, the Emergency Department is inundated with teenage patients, including Sean, whose unusual vitamin tablets ring alarm-bells for the staff, and Sky, whose mother is a long-term advocate of alternative medicine, and is not happy about her daughter receiving an X-ray scan.